With advances in modern society’s technology, there have been a lot of products which substitute for person and pursue convenience. At the same time, the emotional quality level of people who utilize these products has also increased. Therefore, it is necessary to establish objective criteria which can substitute for people’s emotional assessment. The study’s main goal and significance are that handling feeling, the index of emotional assessment, of vehicle’s interior switches becomes quantifiable and is applied to design variable during the product development. However, we point out that there was a limitation on emotion’s objectification due to restricted quantity of examples, so we leave analysis of extensive handling feeling with a number of examples as remaining tasks.